Information transmission method and apparatus, and terminal and network-side device

Abstract

The present application belongs to the technical field of communications. Disclosed are an information transmission method and apparatus, and a terminal and a network-side device. The information transmission method in the embodiments of the present application comprises: a terminal receiving first information from a network-side device, wherein the first information is used for indicating an explicit congestion notification (ECN) mark.

Description

Information transmission method and apparatus, terminal, and network-side device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202411015908.X, filed on July 26, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and specifically relates to an information transmission method, device, terminal and network-side device. BACKGROUND

[0004] Low Latency, Low Loss and Scalable Throughput (L4S) displays congestion information by marking Explicit Congestion Notification (ECN) in the IP header of user Internet Protocol (IP) packets between a User Equipment (UE) and an application server to trigger application layer rate adaptation. The ECN marking of L4S is enabled on a per Quality of Service (QoS) flow basis in the uplink and / or downlink direction, and can be used for Guaranteed Bit Rate (GBR) QoS flows and non-GBR QoS flows. The ECN marking of L4S is used to mark congestion information, and the terminal is likely to cause more signaling waste in the case where the congestion information cannot be obtained. SUMMARY

[0005] Embodiments of the present application provide an information transmission method, device, terminal and network-side device, which can solve the problem of signaling waste of the terminal.

[0006] In a first aspect, an information transmission method is provided, which is performed by a terminal, and the method comprises:

[0007] The terminal receives first information from a network-side device, and the first information is used to indicate an Explicit Congestion Notification (ECN) marking.

[0008] In a second aspect, an information transmission method is provided, which is performed by a network-side device, and the method comprises:

[0009] The network-side device sends first information to a terminal, and the first information is used to indicate an ECN marking.

[0010] In a third aspect, an information transmission apparatus is provided, which is applied to a terminal, and the apparatus comprises:

[0011] A first receiving module is configured to receive first information from a network-side device, the first information being used to indicate an ECN mark.

[0012] In a fourth aspect, an information transmission apparatus is provided, which is applied to a network-side device, and the apparatus comprises:

[0013] A first sending module is configured to send first information to a terminal, the first information being used to indicate an ECN mark.

[0014] In a fifth aspect, an information transmission apparatus is provided, which is configured to perform the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect.

[0015] In a sixth aspect, a terminal is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

[0016] In a seventh aspect, a terminal is provided, which comprises a processor and a communication interface, and the communication interface is configured to receive first information from a network-side device, the first information being used to indicate an ECN mark.

[0017] In an eighth aspect, a network-side device is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the second aspect.

[0018] In a ninth aspect, a network-side device is provided, which comprises a processor and a communication interface, and the communication interface is configured to send first information to a terminal, the first information being used to indicate an ECN mark.

[0019] In a tenth aspect, a readable storage medium is provided, which stores programs or instructions, and the programs or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the second aspect.

[0020] In an eleventh aspect, a wireless communication system is provided, which comprises a terminal and a network-side device, the terminal being configured to perform the steps of the method according to the first aspect, and the network-side device being configured to perform the steps of the method according to the second aspect.

[0021] In a twelfth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is configured to run programs or instructions to implement the method in the first aspect or implement the method in the second aspect.

[0022] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the steps of the information transmission method in the first aspect or implement the steps of the information transmission method in the second aspect.

[0023] In a fourteenth aspect, a computer program product is provided, which includes computer instructions, and when executed by a processor, implements the steps of the information transmission method in the first aspect or implements the steps of the information transmission method in the second aspect.

[0024] In the embodiments of the present application, the terminal receives the first information sent by the network side device, the first information is used to indicate the ECN mark, and the terminal can determine the congestion information according to the ECN mark, so as to reduce the signaling waste when sending or receiving information. BRIEF DESCRIPTION OF DRAWINGS

[0025] FIG. 1 is a structural schematic diagram of a wireless communication system;

[0026] FIG. 2 is a flow schematic diagram of an information transmission method according to an embodiment of the present application;

[0027] FIG. 3 is a flow schematic diagram of an information transmission method according to another embodiment of the present application;

[0028] FIG. 4 is a flow schematic diagram of an information transmission device according to an embodiment of the present application;

[0029] FIG. 5 is a flow schematic diagram of an information transmission method according to another embodiment of the present application;

[0030] FIG. 6 is a structural schematic diagram of a communication device according to an embodiment of the present application;

[0031] FIG. 7 is a structural schematic diagram of a terminal according to an embodiment of the present application;

[0032] FIG. 8 is a structural schematic diagram of a network side device according to an embodiment of the present application;

[0033] FIG. 9 is a structural schematic diagram of a network side device according to another embodiment of the present application. DETAILED DESCRIPTION

[0034] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art are within the scope of the present application.

[0035] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally a class, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0036] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). Among them, the direct indication can be understood as that the sender explicitly informs the receiver of specific information, operation to be performed or request result, etc. in the sent indication; the indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operation to be performed or the request result according to the judgment result.

[0037] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0038] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0039] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0040] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation in this regard. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a special hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0041] The information transmission method, apparatus, terminal and network side device provided by the embodiments of the present application will be described in detail below in combination with the drawings and some embodiments and application scenarios thereof.

[0042] As shown in FIG. 2, the embodiments of the present application provide an information transmission method applied to a terminal, comprising:

[0043] Step 201, the terminal receives first information from a network side device, wherein the first information is used to indicate an Explicit Congestion Notification (ECN) mark.

[0044] In this embodiment, the network side device sends first information to the terminal, which is used to indicate the ECN mark. The terminal can determine whether to perform the ECN mark, and / or whether to activate the ECN mark, and / or whether to require the ECN mark according to the first information. Optionally, the terminal can be a 5G Residential Gateway (5G-RG), and the network side device can be a Session Management Function (SMF). Optionally, the first information can be an Indication of ECN marking for L4S (ECN marking for L4S indication, EMLI).

[0045] In the embodiments of the present application, the terminal receives the first information sent by the network side device, which is used to indicate the ECN mark. The terminal can determine congestion information according to the ECN mark, thereby reducing signaling waste when sending or receiving information.

[0046] As an optional embodiment, the receiving first information from the network side device comprises: receiving target information from the network side device, wherein the first information is contained in the target information.

[0047] The target information comprises at least one of a Quality of Service (QoS) rule, a Protocol Description (PD) and second information.

[0048] The second information satisfies at least one of the following conditions:

[0049] 1) the second information is associated with at least one QoS rule identifier (QRI); it can also be understood that the second information is information associated with at least one QRI;

[0050] 2) the second information is associated with at least one QoS flow identifier (QFI); it can also be understood that the second information is information associated with at least one QFI;

[0051] 3) the second information is associated with at least one QoS rule (QoS Rule); it can also be understood that the second information is information associated with at least one QoS rule;

[0052] 4) the second information is associated with at least one QoS flow (QoS Flow); it can also be understood that the second information is information associated with at least one QoS flow;

[0053] 5) the second information is information other than a QoS rule;

[0054] 6) the second information is information other than a PD;

[0055] 7) the second information includes at least one QRI; the second information can include at least one QRI;

[0056] 8) the second information includes at least one QFI; the second information can include at least one QFI.

[0057] It should be noted that the second information can satisfy one or more of the above conditions, for example, the second information is information other than a PD, and the second information is associated with at least one QRI; the second information is information other than a QoS rule, and the second information is associated with at least one QFI; the second information is information associated with at least one QRI, and the second information includes at least one QRI; the second information is information other than a QoS rule, and the second information is information other than a PD, and the second information includes at least one QRI, which will not be listed one by one.

[0058] It can be understood that the second information is information other than a QoS rule, which can avoid the network side device (such as SMF) from frequently updating the QoS rule due to the change of congestion information. On the other hand, the QoS rule is used for the mapping between data and QoS flow, and it is also beneficial for the terminal to receive the first information through the information other than the QoS rule to avoid affecting the QoS flow mapping mechanism of the terminal.

[0059] It can be understood that the second information is information other than the PD, which can avoid the network side device (such as the SMF) from frequently updating the PD due to the change of the congestion information. On the other hand, the PD is used for the uplink (UL) PDU set processing of the terminal, and the terminal receiving the first information through the information other than the PD is also beneficial to avoid affecting the UL PDU set processing of the terminal.

[0060] It should be noted that in the embodiments of the present application, the PD is used for one of the following:

[0061] Describing the usage protocol of the data flow;

[0062] Used for identifying the PDU Set to which the data packet belongs (for example, the information in the protocol header in the protocol description information can be used for identifying the PDU Set information of the PDU Set to which the data packet belongs);

[0063] Used for marking the PDU Set information;

[0064] Used for identifying the data burst (for example, the information in the protocol header in the protocol description information can be used for identifying the PDU Set information of the PDU Set to which the data packet belongs);

[0065] Used for marking the data burst information.

[0066] Optionally, the PD is the protocol description information corresponding to the first QoS flow, and the first QoS flow is a certain QoS flow.

[0067] Optionally, the PD indicates one of the following:

[0068] The protocol description information is contained in the context of the first QoS flow;

[0069] The protocol description information exists in the data flow (such as the data flow mapped with the first QoS flow);

[0070] The PD is contained in the policy rule (PCC rule) bound with the first QoS flow;

[0071] The protocol description information is provided by a third party or an application function (AF).

[0072] Optionally, the PD indicates the service protocol used by the flow, which can be used for PDU Set information marking.

[0073] Optionally, the PD is used to indicate the transport protocol for service data flow (such as Real Time Protocol (RTP), Secure Real-Time Transport Protocol (SRTP)) and information usage, for example, the following:

[0074] RTP or SRTP;

[0075] RTP or SRTP with RTP header extension, including at least one of the following:

[0076] RTP header extension with traditional definition of PDU set marking;

[0077] Other RTP header extensions with traditional definition;

[0078] RTP or SRTP without RTP header extension, but used with RTP payload format;

[0079] RTP or SRTP with RTP header extension with traditional definition for PDU set marking, and RTP payload format;

[0080] RTP or SRTP used with other RTP header extensions and RTP payload format.

[0081] Optionally, through the protocol description information option of combining SRTP with RTP payload format, the UPF can still obtain some PDU set information from the RTP header.

[0082] When containing RTP header extension for PDU set marking or other RTP header extension, the distinction between different RTP header extension types should be supported.

[0083] When containing RTP payload format, the distinction between different RTP payload forms should be supported.

[0084] Optionally, the current version does not support multiplexing of different transport protocols and different media flows to realize processing based on differentiated PDU sets.

[0085] In an embodiment, the protocol description information can be one of the following:

[0086] Protocol description information only for uplink direction;

[0087] Protocol description information only for downlink direction;

[0088] Or protocol description information for uplink and downlink directions.

[0089] The protocol description information for uplink direction and the protocol description information for downlink direction can be different.

[0090] In this embodiment, the network-side device sends the first information to the terminal through the target information, for example, the network-side device sends the target information, and the target information contains or carries the first information. Optionally, the target information can be one or more of a QoS rule, a PD, second information, and the like, for example, the target information is a QoS rule, the network-side device sends the QoS rule to the terminal, and the first information is contained in the QoS rule; the target information is a PD, the network-side device sends the PD to the terminal, and the first information is contained in the PD; the target information is second information, the network-side device sends the second information to the terminal, and the first information is contained in the second information.

[0091] As an optional embodiment, the first information is contained in the target information, including:

[0092] In the case where the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following:

[0093] Information for indicating the length of the content of the third information;

[0094] At least one QRI;

[0095] At least one QFI.

[0096] In this embodiment, the third information can be the field and / or entry, that is, the second information contains one or more fields and / or entries, and the first information, the QRI, the QFI, and one or more of the information for indicating the length of the content in the field and / or entry are included in the field and / or entry. In this case, the network-side device can send the first information and the QRI and / or QFI to the terminal together. For example, the second information is information associated with at least one QRI, and the information includes multiple entries, and each entry can include: the first information, the QRI, the QFI, and the length of the content of the entry.

[0097] It can be understood that since multiple QoS flows can need to perform ECN marking for L4S, in the case where the third information can contain one information for indicating ECN marking for L4S, at least one QRI, and at least one QFI, the terminal can update the indication information of the Indication of ECN marking for L4S of multiple QRI or QFI at a time, which is beneficial to the terminal to save signaling overhead. As an optional embodiment, the method further includes:

[0098] In a case where the information used for indicating the length of the third information content is set as the first value, the terminal performs at least one of the following operations:

[0099] deleting the first information associated with the QoS rule;

[0100] deleting the first information associated with the QoS flow;

[0101] deleting the association between the QoS rule and the first information;

[0102] deleting the association between the QoS flow and the first information;

[0103] deleting the first information associated with the QRI;

[0104] deleting the first information associated with the QFI.

[0105] In this embodiment, the first value is, for example, 0. The information used for indicating the length of the third information content being set as the first value can mean that the third information does not include any information, and in this case, the terminal can delete all the first information related content, such as deleting the first information associated with the QoS rule, the first information associated with the QoS flow, the association between the QoS rule and the first information, the association between the QoS flow and the first information, the first information associated with the QRI, the first information associated with the QFI, and the like.

[0106] In this embodiment, the first value is, for example, 1. The information used for indicating the length of the third information content being set as the first value can mean that the third information only includes the QRI or the QFI, and in this case, the terminal can delete all the first information related content, such as deleting the first information associated with the QoS rule, the first information associated with the QoS flow, the association between the QoS rule and the first information, the association between the QoS flow and the first information, the first information associated with the QRI, the first information associated with the QFI, and the like.

[0107] Optionally, the second information further includes at least one of the following:

[0108] an information element identifier (IEI);

[0109] information used for indicating the length of the second information.

[0110] In this embodiment, the target information is the second information, and the first information is contained in the second information. The second information can further include an IEI and / or information indicating the length of the second information. For example, the second information includes n entries, each of which includes the first information. The second information can further include an IEI and / or information indicating the length of the second information. In each entry, a QRI, a QFI, information indicating the length of the content of the entry, and the like can be further included.

[0111] As an optional embodiment, the method further includes:

[0112] In a case where the information indicating the length of the second information is set to a second value, the terminal performs at least one of the following operations:

[0113] deleting the first information associated with a QoS rule;

[0114] deleting the first information associated with a QoS flow;

[0115] deleting the association between a QoS rule and the first information;

[0116] deleting the association between a QoS flow and the first information;

[0117] deleting the first information associated with a QRI;

[0118] deleting the first information associated with a QFI.

[0119] In this embodiment, the second information can further include information indicating the length of the second information in addition to the first information. The second value can be 0 or 1. For example, when the second value is 0, it is considered that there is no other information such as a QRI or a QFI in the second information. When the second value is 1, it is considered that there is only other information such as a QRI or a QFI in the second information. When there is no first information, the terminal can delete one or more of the following: the first information associated with a QoS rule, the first information associated with a QoS rule, the association between a QoS rule and the first information, the association between a QoS flow and the first information, the first information associated with a QRI, and the first information associated with a QFI.

[0120] As an optional embodiment, in a case where the target information is a PD, the first information is contained in the target information, and the first information includes at least one of the following:

[0121] a reserved bit in the PD includes the first information;

[0122] information outside a target field in the PD includes the first information;

[0123] The target field includes at least one of the following: a transmission protocol field; a Real Time Protocol (RTP) header extension type field; an RTP header extension id field; and an RTP payload information list field.

[0124] In this embodiment, the target information can be a PD, that is, the first information is contained in the PD. For example, the PD can include a reserved bit, and the first information is contained in the reserved bit; or the PD includes a target field, and the first information is contained in another information field other than the target field. The target field can be one or more of the following: a transmission protocol field; an RTP header extension type field; an RTP header extension id field; and an RTP payload information list field.

[0125] It can be understood that the PD can be understood as protocol description information indicating a transmission protocol (such as RTP, Secure Real-Time Transport Protocol (SRTP), etc.) used by a service data stream and a transmission protocol used by information. Since the first information does not belong to a kind of protocol description information, in the embodiment of the present application, the protocol description information in the PD is not extended, but a reserved bit is used to indicate the first information, or information other than the target field is used to include the first information.

[0126] As an optional embodiment, the method further includes:

[0127] In a case where the first condition is met, the terminal performs at least one of the following operations:

[0128] deleting the first information associated with the QoS rule;

[0129] deleting the first information associated with the QoS flow;

[0130] deleting the association between the QoS rule and the first information;

[0131] deleting the association between the QoS flow and the first information.

[0132] The first condition includes:

[0133] The target information is a PD;

[0134] Information used to indicate the length of the PD is set to 1.

[0135] In this embodiment, when the target information is a PD (i.e., the first information is contained in the PD), and the information for indicating the length of the PD is 1, the terminal can perform one or more operations described above. The length of the PD is set to 1, which can be considered that the PD only contains the QRI and does not contain the content of the first information. Therefore, the terminal can delete the content of the QoS rule indicated by the QRI field of the PD field, and also needs to delete the first information corresponding to the QoS rule and the content related to the first information.

[0136] As an optional embodiment, the receiving the first information from the network-side device comprises at least one of the following:

[0137] receiving a Protocol Data Unit (PDU) session establishment accept message from the network-side device, and the first information is contained in the PDU session establishment accept message;

[0138] receiving a PDU session modification command message from the network-side device, and the first information is contained in the PDU session modification command message.

[0139] In this embodiment, the network-side device can send the first information to the terminal through the PDU session establishment accept message and / or the PDU session modification command message. In this case, the first information can be information at the PDU session level (or applied to the PDU session). In this case, the first information can be applied to all QoS flows in the PDU session and / or all QoS rules in the QoS flow. By sending the first information, the network-side device can indicate to the terminal whether all QoS flows and / or QoS rules in the PDU session need to perform ECN marking, thereby saving signaling.

[0140] As an optional embodiment, the method further comprises:

[0141] The terminal performs a first operation according to the first information, and the first operation comprises at least one of the following:

[0142] storing the first information;

[0143] associating the first information with a PDU session; it can also be understood that the first information and the PDU session are associated, or the association between the first information and the PDU session is established;

[0144] associating the first information with a QoS flow; it can also be understood that the first information and the QoS flow are associated, or the association between the first information and the QoS flow is established;

[0145] The first information and the QoS rule can also be understood as being associated, or an association between the first information and the QoS rule is established.

[0146] In this embodiment, after the terminal receives the first information, one or more operations described above can be performed, such as storing the first information, associating the first information with a PDU session, associating the first information with a QoS flow, and associating the first information with a QoS rule.

[0147] As an optional embodiment, the association between the first information and the QoS flow includes at least one of the following:

[0148] (1) Based on the QRI, the first information is associated with the QoS flow corresponding to the QRI.

[0149] Optionally, the association between the first information and the QoS flow corresponding to the QRI based on the QRI includes: for each QoS flow, the first information is associated with the QoS flow corresponding to the QRI based on the QRI. The association between the first information and the QoS flow corresponding to the QRI can also be understood as: the first information and the QoS flow corresponding to the QRI are associated, or an association between the first information and the QoS flow corresponding to the QRI is established.

[0150] (2) Based on the QFI, the first information is associated with the QoS flow corresponding to the QFI.

[0151] Optionally, the association between the first information and the QoS flow corresponding to the QFI based on the QFI includes: for each QoS flow, the first information is associated with the QoS flow corresponding to the QFI based on the QFI. The association between the first information and the QoS flow corresponding to the QFI can also be understood as: the first information and the QoS flow corresponding to the QFI are associated, or an association between the first information and the QoS flow corresponding to the QFI is established.

[0152] In this embodiment, taking the first information as an example of Indication of ECN marking for L4S, the terminal associates the first information with the QoS flow, which can include: for each existing QoS flow, the terminal associates the Indication of ECN marking for L4S with the QoS flow based on the QRI; and / or, for each existing QoS flow, the terminal associates the Indication of ECN marking for L4S with the QoS flow based on the QFI.

[0153] As an optional embodiment, the associating the first information and the QoS rule comprises at least one of:

[0154] (a) associating the first information and the QoS rule corresponding to the QRI based on the QRI;

[0155] Optionally, the associating the first information and the QoS rule corresponding to the QRI based on the QRI comprises: for each QoS flow, associating the first information and the QoS rule corresponding to the QRI based on the QRI. The associating the first information and the QoS rule corresponding to the QRI can also be understood as: establishing an association relationship between the first information and the QoS rule corresponding to the QRI, or establishing an association relationship of the first information and the QoS rule corresponding to the QRI.

[0156] (b) associating the first information and the QoS rule corresponding to the QFI based on the QFI.

[0157] Optionally, the associating the first information and the QoS rule corresponding to the QFI based on the QFI comprises: for each QoS flow, associating the first information and the QoS rule corresponding to the QFI based on the QFI. The associating the first information and the QoS rule corresponding to the QFI can also be understood as: establishing an association relationship between the first information and the QoS rule corresponding to the QFI, or establishing an association relationship of the first information and the QoS rule corresponding to the QFI.

[0158] In this embodiment, taking the first information as the Indication of ECN marking for L4S as an example, the terminal associating the first information and the QoS rule can comprise: for each existing QoS flow, the terminal associates the Indication of ECN marking for L4S and the QoS rule based on the QRI; and / or, for each existing QoS flow, the terminal associates the Indication of ECN marking for L4S and the QoS rule based on the QFI.

[0159] As an optional embodiment, the method further comprises:

[0160] The terminal receives a target message sent by the network side device;

[0161] According to the target message, a second operation is performed;

[0162] The target message comprises at least one of:

[0163] a message for instructing the terminal to update the first information;

[0164] a message for deleting at least one QoS flow;

[0165] a message for deleting at least one QoS rule;

[0166] The second operation comprises at least one of the following:

[0167] storing the updated first information;

[0168] associating the first information with a QoS flow; it can also be understood as establishing an association relationship between the first information and the QoS flow, or associating the first information with the QoS flow;

[0169] associating the first information with a QoS rule; it can also be understood as associating the first information with the QoS rule, or establishing an association relationship between the first information and the QoS rule.

[0170] deleting at least one QoS flow;

[0171] deleting at least one QoS rule;

[0172] deleting the first information associated with the QoS rule;

[0173] deleting the first information associated with the QoS flow;

[0174] deleting the association relationship between the QoS rule and the first information;

[0175] deleting the association relationship between the QoS flow and the first information.

[0176] Optionally, in the case that the target message comprises a message for instructing the update of the first information, the second operation comprises at least one of the following:

[0177] storing the updated first information;

[0178] associating the first information with a QoS flow;

[0179] associating the first information with a QoS rule.

[0180] Optionally, in the case that the target message comprises a message for deleting at least one QoS flow or the target message comprises a message for deleting at least one QoS rule, the second operation comprises at least one of the following:

[0181] deleting at least one QoS flow;

[0182] deleting at least one QoS rule;

[0183] deleting the first information associated with the QoS rule;

[0184] deleting the first information associated with the QoS flow;

[0185] deleting the association between the QoS rule and the first information;

[0186] deleting the association between the QoS flow and the first information.

[0187] In this embodiment, the network-side device can further send a target message to the terminal, which can be used to indicate one or more of the following: updating the first information, deleting at least one QoS flow, and deleting at least one QoS rule. After receiving the target message, the terminal can perform one or more of the above-mentioned second operations based on the target message. For example, if the target message contains updated first information, the terminal can store the updated first information, and can further associate the updated first information with a QoS flow and a QoS rule. For another example, if the target message contains a message indicating the deletion of at least one QoS flow, the terminal can delete the QoS flow according to the indication, and can further delete the first information associated with the QoS flow, and the association between the QoS flow and the first information. For another example, if the target message contains a message indicating the deletion of at least one QoS rule, the terminal can delete the QoS rule according to the indication, and can further delete the first information associated with the QoS rule, and the association between the QoS rule and the first information.

[0188] It can be understood that if the network deletes a QoS rule or a QoS flow, the Indication of ECN marking for L4S indication information associated with the QoS rule also needs to be deleted, so as to save the storage resources of the 5G-RG.

[0189] Optionally, the ECN marking is an ECN marking for low latency, low loss, and scalable throughput (L4S).

[0190] As an optional embodiment, the first information is used to indicate an ECN marking, and includes at least one of the following:

[0191] (1) The first information is used to indicate whether to perform or not to perform an ECN marking. In this embodiment, the first information can indicate whether to perform or not to perform an ECN marking. Specifically, it can be understood that the first information can be used to indicate whether a QoS flow or a PDU session performs or not performs an ECN marking, or the first information can be used to indicate whether a terminal performs or not performs an ECN marking. For example, after receiving the first information, the terminal can determine whether to perform an ECN marking, for example, whether to perform an ECN marking for L4S.

[0192] (2) The first information is used to indicate whether to activate or not to activate the ECN marking. In the embodiment of the application, the first information can indicate whether to activate or not to activate the ECN marking, specifically, it can be understood that the first information can be used to indicate whether the QoS flow or the PDU session activates or not activates the ECN marking, or the first information can be used to indicate whether the terminal activates or not activates the ECN marking. For example, after the terminal receives the first information, it can determine whether to activate the ECN marking, for example, whether to activate the ECN marking of L4S.

[0193] (3) The first information is used to indicate whether to require or not to require the ECN marking. In the embodiment of the application, the first information can indicate whether to require or not to require the ECN marking, specifically, it can be understood that the first information can be used to indicate whether the QoS flow or the PDU session requires or not requires the ECN marking, or the first information can be used to indicate whether the terminal requires or not requires the ECN marking. For example, after the terminal receives the first information, it can determine whether to require the ECN marking, for example, whether to require the ECN marking of L4S.

[0194] Optionally, the first information satisfies at least one of the following conditions:

[0195] 1) The first information is applied to the PDU session.

[0196] 2) The first information is PDU session level information; it can also be understood that the first information is applied to the PDU session. The first information being PDU session level information can also be referred to as the first information being PDU session granularity information.

[0197] 3) The first information is used to indicate whether the PDU session performs or not performs the ECN marking.

[0198] 4) The first information is type 1 IE.

[0199] In this embodiment, the first information can be applied to the PDU session, or it can be understood that the first information is PDU level information, or it can be understood that the first information is PDU session granularity information. For example, the first information can be applied to all QoS flows in the PDU session, or it can be understood that the first information is applied to the QoS rules corresponding to all QoS flows in the PDU session.

[0200] By sending the first information at the PDU session level, the network-side device can indicate to the terminal that the PDU session needs or does not need to perform ECN marking. That is, the network-side device can indicate to the terminal that all QoS flows in the PDU session need or do not need to perform ECN marking; or the network-side device can indicate to the terminal that all QoS rules corresponding to the QoS flows in the PDU session need or do not need to perform ECN marking. By sending the first information at the PDU session level, the effect of saving signaling can be achieved.

[0201] It can be understood that by sending the first information through the Type 1 IE, the signaling overhead of the terminal can be saved.

[0202] Optionally, in some embodiments, the network-side device can also explicitly indicate that the first information satisfies at least one of the following: the first information applies to the PDU session; the first information is information at the PDU session level; the first information is information at the PDU session granularity; and the first information is used to indicate that the PDU session performs or does not perform ECN marking. That is, the network-side device sends the first information and information indicating at least one of the following to the UE: the first information applies to the PDU session; the first information is information at the PDU session level; the first information is information at the PDU session granularity; and the first information is used to indicate that the PDU session performs or does not perform ECN marking.

[0203] The following illustrates the implementation of the network-side device sending the first information to the terminal.

[0204] Example 1: Taking the network-side device as an SMF and the terminal as a 5G-RG as an example, the first information is Indication of ECN marking for L4S, the SMF sends the first information at the PDU session level to the 5G-RG, and the operations of the SMF after sending the first information and the 5G-RG after receiving the first information include:

[0205] Step 11, the SMF sends the PDU session level Indication of ECN marking for L4S indication information to the 5G-RG.

[0206] Optionally, the first information (i.e., Indication of ECN marking for L4S) is Type 1 IE

[0207] Optionally, the SMF sends the first information to the 5G-RG via at least one of the PDU SESSION MODIFICATION COMMAND message and the PDU SESSION ESTABLISHMENT ACCEPT message.

[0208] In this step, the PDU session-level Indication of ECN marking for L4S can be understood as the Indication of ECN marking for L4S being applied to the PDU session. Specifically, the Indication of ECN marking for L4S being applied to the PDU session can be understood as the Indication of ECN marking for L4S being applied to all QoS flows within the PDU session, or it can be understood as the Indication of ECN marking for L4S being applied to the QoS Rules corresponding to all QoS flows within the PDU session.

[0209] By sending a PDU session-level Indication of ECN marking for L4S, the SMF can indicate to the 5G-RG whether or not the PDU session requires L4S ECN marking. That is, the SMF can indicate to the 5G-RG that all QoS flows in the PDU session require or do not require L4S ECN marking, or vice versa. Sending this PDU session-level Indication of ECN marking for L4S achieves the effect of saving signaling.

[0210] Step 12: The 5G-RG receives the Indication of ECN marking for L4S. Upon receiving the Indication of ECN marking for L4S, the 5G-RG performs at least one of the following:

[0211] Store the Indication of ECN marking for L4S;

[0212] Associate the Indication of ECN marking for L4S with the PDU session.

[0213] Optionally, associating the Indication of ECN marking for L4S with the PDU session can also be understood as the Indication of ECN marking for L4S being applied to the PDU session. The purpose of the ECN marking for L4S indication is to indicate whether the PDU session needs to perform L4S ECN marking.

[0214] The ECN marking for L4S indication (EMLI) codes are shown in Tables 1 and 2 below.

[0215] Table 1: ECN marking for L4S indication (EMLI)

[0216] Table 2: ECN marking for L4S indication (EMLI)

[0217] In this example, the SMF sends PDU session-level Indication of ECN marking for L4S. This primarily addresses how the Indication of ECN marking for L4S is transmitted to the 5G-RG via N1 signaling, ensuring that it can be correctly associated with QoS rules or QoS flows within the 5G-RG, thus correctly marking the ECN information.

[0218] Example 2: Taking the network-side device as SMF and the terminal as 5G-RG as an example, the first information is the Indication of ECN marking for L4S. The SMF sends target information to the 5G-RG, and the Indication of ECN marking for L4S is included in the target information.

[0219] The operations of SMF sending the first information and 5G-RG receiving the first information include:

[0220] Step 21: The SMF sends the Indication of ECN marking for L4S along with the second information to the 5G-RG. The Indication of ECN marking for L4S is not included in the QoS rules and / or is not included in the QoS rule PD.

[0221] In this step, the second information is not included in the QoS rules and / or is not included in the PD, that is, the second information is information outside the QoS rules and / or the second information is information outside the PD.

[0222] Understandably, the second piece of information is information outside of the QoS rules. On the one hand, this avoids the need for SMF to frequently update the QoS rules due to changes in congestion information. On the other hand, since QoS rules are used for mapping between data and QoS flows, the terminal receiving the first information through information outside of the QoS rules also helps to avoid affecting the terminal's QoS flow mapping mechanism.

[0223] Understandably, the second information is information other than the PD. On the one hand, this avoids the need for the SMF to frequently update the PD due to changes in congestion information. On the other hand, since the PD is used for the terminal's UL PDU set processing, the terminal receiving the first information through information other than the PD also helps to avoid affecting the terminal's UL PDU set processing.

[0224] Optionally, the Indication of ECN marking for L4S and the second information are in the same IE. Optionally: The SMF sends the Indication of ECN marking for L4S and the second information to the 5G-RG via at least one of the PDU SESSION MODIFICATION COMMAND message and the PDU SESSION ESTABLISHMENT ACCEPT message.

[0225] Step 22: The 5G-RG receives the Indication of ECN marking for L4S. Upon receiving the Indication of ECN marking for L4S, the 5G-RG performs at least one of the following:

[0226] Store the Indication of ECN marking for L4S;

[0227] Associate the Indication of ECN marking for L4S with the QoS flow;

[0228] Associate the Indication of ECN marking for L4S with QoS rules.

[0229] Optionally, the association of the Indication of ECN marking for L4S with the QoS rules includes: for each existing QoS flow, 5G-RG associates the Indication of ECN marking for L4S with the QoS flow based on the first information.

[0230] For example, for each existing QoS flow, 5G-RG associates the Indication of ECN marking for L4S with the QoS flow corresponding to the QRI based on the QRI. As another example, for each existing QoS flow, 5G-RG associates the Indication of ECN marking for L4S with the QoS flow corresponding to the QFI based on the QFI.

[0231] Optionally, when the SMF sends the Indication of ECN marking for L4S via the second information, it can send it together with information such as QRI and QFI. The second information may include at least one third information, which may be a field or entry in the second information. The third information includes at least one of the following: information indicating the length of the third information content; information indicating ECN marking for L4S (i.e., Indication of ECN marking for L4S or ECN marking for L4S indication); at least one QRI; and at least one QFI.

[0232] Understandably, since multiple QoS flows may require ECN marking for L4S, the third information can include information indicating ECN marking for L4S, at least one QRI, and at least one QFI. The terminal can update the indication of ECN marking for L4S for multiple QRIs or QFIs at once, which helps the terminal save signaling overhead.

[0233] For example, SMF sends the Indication of ECN marking for L4S and QRI through the second information. The purpose of the Indication of ECN marking for L4S is to indicate whether a QoS flow is required for ECN marking for L4S.

[0234] The ECN marking for L4S indication information element is a type 4 information element with a minimum length of 5 octets.

[0235] The encodings of the IE used to send the Indication of ECN marking for L4S and QRI are shown in Tables 3-5 below. Table 3 is a schematic diagram of the EMLI IE content, containing multiple EMLI entries (which can be considered as multiple third-party information); Table 4 is a schematic diagram of the EMLI 1 content.

[0236] Table 3: EMLI IE

[0237] Table 4: EMLI 1

[0238] Table 5: EMLI Encoding

[0239] Optionally, the SMF may send only at least one QRI indicating that an ECN marking for L4S is required. For example, the transmission method of the Indication of ECN marking for L4S and the second information is shown in Tables 6 to 8 below, where the second information is a QRI. The purpose of the ECN marking for L4S indication information element is to indicate whether a QoS flow is required for ECN marking for L4S.

[0240] EMLI IE is a type 4 IE with a minimum length of 2 octets (The ECN marking for L4S indication information element is a type 4 information element with a minimum length of 5 octets).

[0241] Table 6: EMLI IE

[0242] Table 7: QRI information

[0243] Table 8: Encoding of QRI information

[0244] Optionally, the SMF sends the Indication of ECN marking for L4S and QFI via the second information. The transmission methods of the Indication of ECN marking for L4S and QFI are shown in Tables 9 to 11 below. Table 9 contains the content of the EMLI IE, which includes multiple EMLIs (which can be considered as the third information). Table 10 contains the content of each EMLI (Table 10 uses EMLI1 as an example). Table 11 shows the encoding of the EMLI.

[0245] The purpose of the EMLI IE is to indicate whether a QoS flow requires an ECN marking for L4S. The EMLI IE is a type 4 IE with a minimum length of 5 octets.

[0246] Table 9: EMLI IE

[0247] Table 10: EMLI 1

[0248] Table 11: EMLI Encoding

[0249] In this example, the SMF sends the Indication of ECN marking for L4S along with the second information to the 5G-RG. This solves the problem of how the Indication of ECN marking for L4S is sent to the 5G-RG via N1 signaling, ensuring that the Indication of ECN marking for L4S can be correctly associated with QoS rules or QoS flows in the 5G-RG, and thus the 5G-RG can correctly mark the ECN information.

[0250] Example 3: Taking the network-side device as SMF and the terminal as 5G-RG as an example, the first information is the Indication of ECN marking for L4S. The SMF sends target information to the 5G-RG. The Indication of ECN marking for L4S is included in the target information, and the target information is a QoS rule or PD.

[0251] The operations of SMF sending the first information and 5G-RG receiving the first information include:

[0252] Step 31: The SMF sends the Indication of ECN marking for L4S to the 5G-RG, which includes this information in the target information. The target information includes at least one of the following: PD; QoS rule.

[0253] Optionally, the SMF sends the Indication of ECN marking for L4S to the 5G-RG via at least one of the PDU SESSION MODIFICATION COMMAND message and the PDU SESSION ESTABLISHMENT ACCEPT message.

[0254] Step 32: The 5G-RG receives the Indication of ECN marking for L4S. Upon receiving the Indication of ECN marking for L4S, the 5G-RG performs at least one of the following:

[0255] Store the Indication of ECN marking for L4S;

[0256] Associate the Indication of ECN marking for L4S with the QoS flow;

[0257] Associate the Indication of ECN marking for L4S with QoS rules.

[0258] Optionally, the association of the Indication of ECN marking for L4S with the QoS flow includes: for each existing QoS flow, 5G-RG associates the Indication of ECN marking for L4S with the QoS flow based on the QRI. The QRI is contained in the PD.

[0259] Optionally, the association of the Indication of ECN marking for L4S with QoS rules includes: for each existing QoS flow, 5G-RG associates the Indication of ECN marking for L4S with QoS rules based on the QRI. The QRI is included in the PD.

[0260] Taking the Indication of ECN marking for L4S included in the PD as an example, the purpose of the PD IE is to provide the UE with a protocol description for UL PDU set processing. The PD IE is a type 6 IE with a minimum length of 7 octets. The PD IE is shown in Table 12, and the method by which the Indication of ECN marking for L4S is included in the PD is shown in Table 13. The RTP payload information list field in Table 13 is shown in Table 14. The RTP payload information is shown in Table 15. The encoding method of the Indication of ECN marking for L4S in the PD is shown in Table 16.

[0261] Table 12: PD IE

[0262] Table 13: How EMLI is included in PD

[0263] Table 14: RTP Load Information List

[0264] Table 15: RTP Load Information

[0265] Table 16: PD IE Encoding

[0266] Optionally, taking the Indication of ECN marking for L4S included in the QoS rule as an example, the encoding method of the Indication of ECN marking for L4S in the QoS rule is shown in Tables 17 and 18 below.

[0267] Table 17: QoS rules

[0268] Table 18: Encoding methods for QoS rules

[0269] In this embodiment, the SMF includes the Indication of ECN marking for L4S in the PD or QoS rule and sends it to the 5G-RG. This solves the problem of how the Indication of ECN marking for L4S is sent to the 5G-RG via N1 signaling, enabling the Indication of ECN marking for L4S to be correctly associated with the QoS rule or QoS flow, and thus correctly marking the ECN information.

[0270] Example 4: The network-side device can send a target message to the terminal, instructing the device to update first information and / or delete at least one QoS flow and / or delete at least one QoS rule.

[0271] Taking the network-side device as SMF and the terminal as 5G-RG as an example, the first information is the Indication of ECN marking for L4S, and SMF sends the target message to 5G-RG.

[0272] The operations of SMF sending the target message and 5G-RG receiving the target message include:

[0273] Step 41: SMF sends at least one of the following to 5G-RG: an updated Indication of ECN marking for L4S; a message requesting the deletion of at least one QoS flow; or a message requesting the deletion of at least one QoS rule.

[0274] Optionally, the SMF sends the updated Indication of ECN marking for L4S via a PDU SESSION MODIFICATION COMMAND message.

[0275] Optionally, the updated Indication of ECN marking for L4S is sent along with QFI, and / or the updated Indication of ECN marking for L4S is sent along with QRI, as described in Example 2, which will not be repeated here.

[0276] Optionally, the updated Indication of ECN marking for L4S is included in the PD and sent, and / or the updated Indication of ECN marking for L4S is included in the QoS rule, as described in Example 3, which will not be repeated here.

[0277] Step 42: 5G-RG receives the updated Indication of ECN marking for L4S sent by SMF; a message for requesting the deletion of at least one QoS flow; and a message for requesting the deletion of at least one QoS rule.

[0278] 5G-RG performs at least one of the following:

[0279] Receive updated Indication of ECN marking for L4S from SMF;

[0280] Store the Indication of ECN marking for L4S;

[0281] Associate the Indication of ECN marking for L4S with the QoS flow;

[0282] Associate the Indication of ECN marking for L4S with QoS rules;

[0283] Delete the Indication of ECN marking for L4S corresponding to the QoS rule;

[0284] Delete the Indication of ECN marking for L4S corresponding to the QoS flow;

[0285] Remove the association between the Indication of ECN marking for L4S and the target QoS rule;

[0286] Remove the association between the Indication of ECN marking for L4S and the target QoS flow.

[0287] The at least one QoS rule includes at least one QoS rule associated with an Indication of ECN marking for L4S.

[0288] The at least one QoS flow includes at least one QoS flow associated Indication of ECN marking for L4S.

[0289] It should be noted that, if the 5G-RG already stores the Indication of ECN marking for L4S, storing the Indication of ECN marking for L4S can also be understood as updating or replacing the Indication of ECN marking for L4S.

[0290] If the 5G-RG already stores the Indication of ECN marking for L4S, associating the Indication of ECN marking for L4S with the QoS flow can also be understood as updating or replacing the association between the Indication of ECN marking for L4S and the corresponding QoS flow.

[0291] If the 5G-RG has already stored the Indication of ECN marking for L4S, associating the Indication of ECN marking for L4S with the QoS rules can also be understood as updating or replacing the association between the Indication of ECN marking for L4S and the corresponding QoS rules.

[0292] Optionally, when 5G-RG performs at least one of the association of the Indication of ECN marking for L4S with QoS flow and the association of the Indication of ECN marking for L4S with QoS rules, the Indication of ECN marking for L4S satisfies at least one of the following: included in PD; received in the same IE as the QRI and / or QFI and not included in QoS rules; received in the same IE as the QRI and / or QFI and not included in PD.

[0293] The Indication of ECN marking for L4S is included in PD, as shown in Example 3 above, and will not be repeated here.

[0294] If the QRI and / or QFI are received in the same IE and are not included in the QoS rules, please refer to Example 2 above, which will not be repeated here. If the QRI and / or QFI are received in the same IE and are not included in the PD, please refer to Example 2 above, which will not be repeated here.

[0295] Optionally, the terminal may delete the Indication of ECN marking for L4S corresponding to the QoS rule if at least one of the following conditions is met.

[0296] SMF sends a message to request the deletion of at least one QoS rule;

[0297] The IE setting used to indicate the length of the Indication of ECN marking for L4S is 0;

[0298] The IE setting used to indicate the length of the Indication of ECN marking for L4S is 1;

[0299] The IE setting used to indicate the length of the PageView content is 1.

[0300] The Indication of ECN marking for L4S includes: the Indication of ECN marking for L4S and QRI and / or QFI.

[0301] Optionally, one implementation of the SMF sending the Indication of ECN marking for L4S can refer to Example 2. In this case, setting the IE (Indicator of Qualification) for indicating the length of the Indication of ECN marking for L4S content to 0 can be understood as follows: since the Indication of ECN marking for L4S content includes the Indication of ECN marking for L4S and QRI and / or QFI, and the IE for the length of the Indication of ECN marking for L4S content is set to 0, this means that the Indication of ECN marking for L4S content does not include any QRI and / or QFI. In this case, 5G-RG can delete all stored Indications of ECN marking for L4S, or delete the association between the Indication of ECN marking for L4S and the target QoS flow or target QoS rule. It should be noted that if the SMF deletes a QoS rule, the Indication of ECN marking for L4S associated with that QoS rule also needs to be deleted, thus saving 5G-RG storage resources. Furthermore, if the Indication of ECN marking for L4S is associated with any QoS rule or QoS flow, that association can also be deleted to conserve 5G-RG storage resources.

[0302] Optionally, one implementation of the SMF sending the Indication of ECN marking for L4S can be found in Example 2. In this case, setting the IE (Interface) used to indicate the length of the Indication of ECN marking for L4S to 1 can be understood as the Indication of ECN marking for L4S content only including QRI and / or QFI, but excluding indications indicating whether or not ECN marking for L4S needs to be performed. In this situation, the 5G-RG can delete all stored Indications of ECN marking for L4S, or delete the association between the Indications of ECN marking for L4S and QoS flows or QoS rules. It should be noted that if the SMF deletes a QoS rule, the Indications of ECN marking for L4S associated with that QoS rule also need to be deleted, thus saving 5G-RG storage resources. Furthermore, if the Indication of ECN marking for L4S is associated with any QoS rules or QoS flows, that association can also be deleted to save 5G-RG storage resources.

[0303] Optionally, the Indication of ECN marking for L4S is included in the PD, as shown in Example 3. The IE used to indicate the length of the PD content is set to 1, which can be understood as the PD content only containing QRIs. Therefore, 5G-RG needs to delete any already stored PDs whose QRI fields indicate QoS rules, and also needs to delete the Indication of ECN marking for L4S corresponding to those QoS rules. The QoS rule is the QoS rule corresponding to the QRI contained in the PD. It should be noted that if the SMF deletes a QoS rule, the Indication of ECN marking for L4S associated with that QoS rule also needs to be deleted, thus saving 5G-RG storage resources. Furthermore, if the Indication of ECN marking for L4S has any associated QoS rules or QoS flows, these associations can also be deleted to save 5G-RG storage resources.

[0304] Optionally, the message used in this embodiment to request the deletion of at least one QoS rule may be a PDU SESSION MODIFICATION COMMAND message. Further, the PDU SESSION MODIFICATION COMMAND message may also include an Authorized QoS rule IE, wherein the rule operation code of the Authorized QoS rules IE is set to "Delete existing QoS rule".

[0305] Optionally, the terminal may delete the Indication of ECN marking for L4S corresponding to the QoS flow if at least one of the following conditions is met:

[0306] SMF sends a message to request the deletion of at least one QoS flow;

[0307] The IE setting used to indicate the length of the Indication of ECN marking for L4S is 0;

[0308] The IE setting used to indicate the length of the Indication of ECN marking for L4S is 1;

[0309] The IE setting used to indicate the length of the PageView content is 1.

[0310] The Indication of ECN marking for L4S includes: the Indication of ECN marking for L4S and QRI and / or QFI.

[0311] The meaning of setting the IE for indicating the length of the Indication of ECN marking for L4S to 0, setting the IE for indicating the length of the Indication of ECN marking for L4S to 1, and setting the IE for indicating the length of the PD content to 1 will not be elaborated here.

[0312] Optionally, the message used to request the deletion of at least one QoS flow can be a PDU SESSION MODIFICATION COMMAND message.

[0313] In this embodiment, the SMF updates the ECN marking indication information. This solves the problem of how the SMF updates the Indication of ECN marking for L4S to the 5G-RG, enabling the Indication of ECN marking for L4S to be correctly associated with QoS rules or QoS flows in the 5G-RG, and thus the 5G-RG to correctly mark ECN information.

[0314] In embodiments of this application, the terminal receives first information sent by the network-side device. This first information is used to indicate an ECN mark. The terminal can determine congestion information based on the ECN mark, thereby reducing signaling waste when sending or receiving information. This solves the problem of SMF sending and updating the Indication of ECN marking for L4S, optimizes signaling interaction, and saves 5G-RG storage space.

[0315] As shown in Figure 3, this application embodiment also provides an information transmission method applied to a network-side device, including:

[0316] Step 301: The network-side device sends first information to the terminal, the first information being used to indicate the ECN tag.

[0317] In this embodiment, the network-side device sends first information to the terminal to indicate an ECN mark. The terminal can determine whether to perform ECN marking, and / or activate ECN marking, and / or request ECN marking based on the first information. Optionally, the terminal can be a 5G-RG, and the network-side device can be an SMF. Optionally, the first information can be an L4S ECN marking indication (Indication of ECN marking for L4S), also known as ECN marking for L4S indication (EMLI).

[0318] In an embodiment of this application, the network-side device sends first information to the terminal, which is used to indicate an ECN tag. The terminal can determine congestion information based on the ECN tag, thereby reducing signaling waste when sending or receiving information.

[0319] As an optional embodiment, sending the first information to the terminal includes:

[0320] Send target information to the terminal, wherein the first information is contained within the target information;

[0321] The target information includes at least one of QoS rules, PD, and second information;

[0322] The second information satisfies at least one of the following conditions:

[0323] The second information is associated with at least one QoS rule identifier (QRI);

[0324] The second information is associated with at least one QoS flow identifier (QFI);

[0325] The second information is associated with at least one QoS rule;

[0326] The second information is associated with at least one QoS flow;

[0327] The second piece of information is information outside of QoS rules;

[0328] The second information is information other than PD;

[0329] The second information includes at least one QRI;

[0330] The second information includes at least one QFI.

[0331] It should be noted that the second information may satisfy one or more of the above conditions. For example, the second information is information other than PD, and the second information is associated with at least one QRI; the second information is information other than QoS rules, and the second information is associated with at least one QFI; the second information is information associated with at least one QRI, and the second information contains at least one QRI; the second information is information other than QoS rules, and the second information is information other than PD, and the second information contains at least one QRI. These are not listed one by one here.

[0332] Understandably, the second piece of information is information outside of the QoS rules. On the one hand, this avoids the need for network-side devices (such as SMF) to frequently update the QoS rules due to changes in congestion information. On the other hand, since QoS rules are used for mapping between data and QoS flows, the terminal receiving the first piece of information outside of the QoS rules also helps to avoid affecting the terminal's QoS flow mapping mechanism.

[0333] Understandably, the second information is information other than the PD. On the one hand, this avoids the need for network-side devices (such as SMF) to frequently update the PD due to changes in congestion information. On the other hand, the PD is used for the terminal's uplink (UL) PDU set processing, and the terminal receiving the first information through information other than the PD also helps to avoid affecting the terminal's UL PDU set processing.

[0334] It should be noted that, in the embodiments of this application, PD is used for one of the following:

[0335] Describes the usage protocol of the data stream;

[0336] Used to identify the PDU Set to which a data packet belongs (e.g., information in the protocol header of the protocol description information can be used to identify the PDU Set to which the data packet belongs).

[0337] Used to mark PDU Set information;

[0338] Used to identify data bursts, for example, information in the protocol header of the protocol description information can be used to identify the PDU Set information to which the data packet belongs;

[0339] Used to mark data burst information.

[0340] Optionally, the PD is the protocol description information corresponding to the first QoS flow, and the first QoS flow is a certain QoS flow.

[0341] Optionally, the presence of PD indicates one of the following:

[0342] The context of the first QoS flow contains protocol description information;

[0343] The data stream (such as the data stream that maps the first QoS stream) contains protocol description information;

[0344] Policy rules (PCC rules), such as policy rules that bind the first QoS flow and contain PD;

[0345] Third-party or application functions provide protocol description information.

[0346] Optionally, PD indicates that the service protocol used by the flow can be used for PDU Set information tagging.

[0347] Optionally, PD is used to indicate the transport protocol used for service data streams (such as RTP, SRTP) and information, such as the following:

[0348] RTP or SRTP;

[0349] An RTP or SRTP with an RTP header extension, including at least one of the following:

[0350] Traditionally defined RTP header extension for PDU set tags;

[0351] Other traditionally defined RTP header extensions;

[0352] RTP or SRTP, without RTP header extensions, but used with the RTP payload format;

[0353] RTP or SRTP has the conventionally defined RTP header extension for PDU set tagging, as well as the RTP payload format;

[0354] RTP or SRTP is used in conjunction with other RTP header extensions and RTP payload formats.

[0355] Alternatively, by combining the protocol description information option of SRTP with the RTP payload format, the UPF can still obtain some PDU set information from the RTP header.

[0356] When including RTP header extensions for PDU set marking or other RTP header extensions, the distinction between different RTP header extension types should be supported.

[0357] When including RTP payload formats, the differences between different RTP payload formats should be supported.

[0358] Optionally, the current version does not support multiplexing of different transport protocols and different media traffic to achieve processing based on differentiated PDU sets.

[0359] In one implementation, the protocol description information can be one of the following:

[0360] Protocol description information used only in the uplink direction;

[0361] Protocol description information used only in the downlink direction;

[0362] Or it can be used for protocol description information in the uplink and downlink directions.

[0363] The protocol description information used for the uplink direction and the protocol description information used for the downlink direction may be different.

[0364] In this embodiment, the network-side device sends the first information to the terminal via target information. For example, the network-side device sends target information that includes or carries the first information. Optionally, the target information can be one or more of QoS rules, PD (Program Device), and second information. For example, if the target information is a QoS rule, the network-side device sends the QoS rule to the terminal, and the first information is included in the QoS rule; if the target information is a PD, the network-side device sends the PD to the terminal, and the first information is included in the PD; if the target information is second information, the network-side device sends the second information to the terminal, and the first information is included in the second information.

[0365] Optionally, the first information is included in the target information, including:

[0366] When the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following:

[0367] Information used to indicate the length of the third information content;

[0368] At least one QRI;

[0369] At least one QFI.

[0370] In this embodiment, the third information may be the field and / or entry, meaning the second information contains one or more fields and / or entries. These fields and / or entries include the first information, a QRI, a QFI, and information indicating the content length of the field and / or entry, or one or more of these. In this case, the network-side device can send the first information and the QRI and / or QFI together to the terminal. For example, the second information may be associated with at least one QRI, and this information may include multiple entries. Each entry may include: the first information, the QRI, the QFI, and the content length of the entry.

[0371] Understandably, since multiple QoS flows may require ECN marking for L4S, the third information can include information indicating ECN marking for L4S, at least one QRI, and at least one QFI. The terminal can update the indication of ECN marking for L4S for multiple QRIs or QFIs at once, which helps the terminal save signaling overhead.

[0372] Optionally, the second information may also include at least one of the following:

[0373] Information element identifier (IEI);

[0374] Information used to indicate the length of the second message.

[0375] In this embodiment, the target information is the second information, and the first information is contained within the second information. In addition to the first information, the second information may also include an IEI and / or information indicating the length of the second information. For example, the second information includes n entries, each entry includes the first information, and the second information may also include an IEI and / or information indicating the length of the second information. Each entry may also include a QRI, QFI, information indicating the length of the entry's content, etc.

[0376] As an optional embodiment, when the target information is PD, the first information is included in the target information, including at least one of the following:

[0377] The reserved bits in the PD include the first information;

[0378] The information outside the target domain in the PD includes the first information;

[0379] The target domain includes at least one of the following: transport protocol domain; RTP header extension type domain; RTP header extension identifier domain; and RTP payload information list domain.

[0380] In this embodiment, the target information can be a PD, meaning the first information is contained within the PD. For example, the PD may include reserved bits, and the first information is contained within those reserved bits; or the PD may contain a target field, and the first information is contained within other information fields besides the target field. The target field may be one or more of the following: a transport protocol field, an RTP header extension type field, an RTP header extension identifier field, and an RTP payload information list field.

[0381] It is understood that PD can be understood as protocol description information indicating the transport protocol used by the service data stream (e.g., RTP, Secure Real-Time Transport Protocol (SRTP)) and the transport protocol used by the information. Since the first information is not a protocol description information, the protocol description information in the PD is not extended in the embodiments of this application. Instead, reserved bits are used to indicate the first information, or information outside the target domain is used to include the first information.

[0382] As an optional embodiment, sending the first information to the terminal includes at least one of the following:

[0383] Send a PDU session establishment acceptance message to the terminal, wherein the first information is included in the PDU session establishment acceptance message;

[0384] A PDU session modification command message is sent to the terminal, wherein the first information is included in the PDU session modification command message.

[0385] In this embodiment, the network-side device can send the first information to the terminal via a PDU session establishment accept message and / or a PDU session modification command message. In this case, the first information can be PDU session-level (or application-to-PDU session) information. In this case, the first message can be applied to all QoS flows and all QoS rules within the PDU session. By sending this first information, the network-side device can indicate to the terminal whether all QoS flows and / or QoS rules within the PDU session need to be marked with ECN, thereby saving signaling.

[0386] As an optional embodiment, the method further includes:

[0387] Send a target message to the terminal; the target message includes at least one of the following:

[0388] A message used to instruct the updating of the first information;

[0389] Message used to delete at least one QoS flow;

[0390] A message used to delete at least one QoS rule.

[0391] In this embodiment, the network-side device can also send a target message to the terminal. This target message can be used to instruct one or more of the following: updating the first information, deleting at least one QoS flow, and deleting at least one QoS rule. After receiving the target message, the terminal can perform one or more of the second operations described above based on the target message. For example: if the target message contains updated first information, the terminal can store the updated first information and associate the updated first information with a QoS flow, or with a QoS rule; as another example: if the target message contains a message instructing the deletion of at least one QoS flow, the terminal can delete the QoS flow according to the instruction, and can also delete the first information associated with the QoS flow, or the association between the QoS flow and the first information; as yet another example: if the target message contains a message instructing the deletion of at least one QoS rule, the terminal can delete the QoS rule according to the instruction, and can also delete the first information associated with the QoS rule, or the association between the QoS rule and the first information.

[0392] Understandably, if the network deletes a QoS rule or QoS flow, the Indication of ECN marking for L4S associated with that QoS rule also needs to be deleted, thus saving 5G-RG storage resources.

[0393] Optionally, the ECN tag is an ECN tag for low latency, low loss, and scalable throughput L4S.

[0394] As an optional embodiment, the first information is used to indicate the ECN tag, including at least one of the following:

[0395] The first information is used to indicate whether or not to execute the ECN tag;

[0396] The first information is used to indicate whether the ECN tag is activated or deactivated;

[0397] The first piece of information is used to indicate whether or not an ECN tag is required.

[0398] Optionally, the first information satisfies at least one of the following:

[0399] The first information is applied to the PDU session;

[0400] The first information is PDU session-level information; the first information being PDU session-level information can also be referred to as the first information being PDU session-granular information.

[0401] The first information is used to instruct the PDU session whether or not to execute the ECN tag;

[0402] The first piece of information is a Type 1 IE.

[0403] In this embodiment, the first information can be applied to a PDU session, or it can be understood as PDU-level information, or PDU session-level information. For example, the first information can be applied to all QoS flows in a PDU session, or it can be understood as the first information being applied to the QoS Rules corresponding to all QoS flows in a PDU session.

[0404] By sending the first information at the PDU session level, the network-side device can indicate to the terminal whether or not ECN marking is required for the PDU session. That is, the network-side device can indicate to the terminal whether all QoS flows in the PDU session require or do not require ECN marking; or, the network-side device can indicate whether the QoS rules corresponding to all QoS flows in the PDU session require or do not require ECN marking. Sending the first information at the PDU session level can save signaling.

[0405] Understandably, sending the first message via a Type 1 IE can save on terminal signaling overhead.

[0406] Optionally, in some implementations, the network-side device may also explicitly indicate that the first information satisfies at least one of the following: the first information applies to the PDU session; the first information is PDU session-level information; the first information is PDU session-granular information; the first information is used to indicate whether the PDU session executes or does not execute ECN marking. That is, the network-side device sends the first information and information indicating at least one of the following to the UE: the first information applies to the PDU session; the first information is PDU session-level information; the first information is PDU session-granular information; the first information is used to indicate whether the PDU session executes or does not execute ECN marking.

[0407] It should be noted that the method applied to the network-side device can implement all the steps executed by the network-side device in the above-described method embodiment applied to the terminal, and achieve the same technical effect. Repeated content will not be repeated here.

[0408] In embodiments of this application, the network-side device sends first information to the terminal, which is used to indicate an ECN mark. The terminal can determine congestion information based on the ECN mark, thereby reducing signaling waste when sending or receiving information. This solves the problem of SMF sending and updating the Indication of ECN marking for L4S, optimizes signaling interaction, and saves 5G-RG storage space.

[0409] The information transmission method provided in this application can be executed by an information transmission device. This application uses an information transmission device executing the information transmission method as an example to illustrate the information transmission device provided in this application.

[0410] This application provides an information transmission device. As an example, the information transmission device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0411] The information transmission device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0412] Specifically, referring to Figure 4, when the information transmission device is a terminal or a component in a terminal, the information transmission device 400 includes a first receiving module 401, which is used to receive first information from a network-side device. The first information is used to indicate an explicit congestion notification (ECN) tag.

[0413] Optionally, the first receiving module is specifically used for:

[0414] Receive target information from a network-side device, wherein the first information is contained within the target information;

[0415] The target information includes at least one of the following: Quality of Service (QoS) rules, Protocol Description (PD), and second information.

[0416] The second information satisfies at least one of the following conditions:

[0417] The second information is associated with at least one QoS rule identifier (QRI);

[0418] The second information is associated with at least one QoS flow identifier (QFI);

[0419] The second information is associated with at least one QoS rule;

[0420] The second information is associated with at least one QoS flow;

[0421] The second piece of information is information outside of QoS rules;

[0422] The second information is information other than PD;

[0423] The second information includes at least one QRI;

[0424] The second information includes at least one QFI.

[0425] Optionally, the first information is included in the target information, including:

[0426] When the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following:

[0427] Information used to indicate the length of the third information content;

[0428] At least one QRI;

[0429] At least one QFI.

[0430] Optionally, the device further includes:

[0431] A first processing module is configured to, when the information indicating the length of the third information content is set to a first value, perform at least one of the following operations on the terminal:

[0432] Delete the first piece of information associated with the QoS rule;

[0433] Delete the first piece of information associated with the QoS flow;

[0434] Remove the association between the QoS rule and the first piece of information;

[0435] Remove the association between the QoS flow and the first information;

[0436] Delete the first piece of information associated with the QRI;

[0437] Delete the first information associated with QFI.

[0438] Optionally, the second information may also include at least one of the following:

[0439] Information element identifier (IEI);

[0440] Information used to indicate the length of the second message.

[0441] Optionally, the device further includes:

[0442] The second processing module is configured to, when the information indicating the second information length is set to a second value, perform at least one of the following operations on the terminal:

[0443] Delete the first piece of information associated with the QoS rule;

[0444] Delete the first piece of information associated with the QoS flow;

[0445] Remove the association between the QoS rule and the first piece of information;

[0446] Remove the association between the QoS flow and the first information;

[0447] Delete the first piece of information associated with the QRI;

[0448] Delete the first information associated with QFI.

[0449] Optionally, if the target information is a PD, the first information is included in the target information, including at least one of the following:

[0450] The reserved bits in the PD include the first information;

[0451] The information outside the target domain in the PD includes the first information;

[0452] The target domain includes at least one of the following: transport protocol domain; RTP header extension type domain; RTP header extension identifier domain; and RTP payload information list domain.

[0453] Optionally, the device further includes:

[0454] The third processing module is configured to, if the first condition is met, have the terminal perform at least one of the following operations:

[0455] Delete the first piece of information associated with the QoS rule;

[0456] Delete the first piece of information associated with the QoS flow;

[0457] Remove the association between the QoS rule and the first piece of information;

[0458] Remove the association between the QoS flow and the first information.

[0459] The first condition includes:

[0460] The target information is PD;

[0461] The information used to indicate the length of the PD is set to 1.

[0462] Optionally, the first receiving module is specifically configured to perform at least one of the following:

[0463] Receive a PDU session establishment acceptance message from a network-side device, wherein the first information is included in the PDU session establishment acceptance message;

[0464] Receive a PDU session modification command message from a network-side device, wherein the first information is included in the PDU session modification command message.

[0465] Optionally, the device further includes:

[0466] The fourth processing module is configured to perform a first operation based on the first information, wherein the first operation includes at least one of the following:

[0467] Store the first information;

[0468] Associate the first information with the PDU session;

[0469] Associate the first information with the QoS flow;

[0470] Associate the first information with the QoS rules.

[0471] Optionally, associating the first information and the QoS flow includes at least one of the following:

[0472] Based on the QRI, associate the first information with the QoS flow corresponding to the QRI;

[0473] Based on QFI, associate the first information with the QoS flow corresponding to the QFI.

[0474] Optionally, the step of associating the first information and the QoS flow corresponding to the QRI based on the QRI includes:

[0475] For each QoS flow, based on the QRI, associate the first information with the QoS flow corresponding to the QRI.

[0476] Optionally, the step of associating the first information and the QoS flow corresponding to the QFI based on QFI includes:

[0477] For each QoS flow, based on QFI, associate the first information with the QoS flow corresponding to the QFI.

[0478] Optionally, the association of the first information and the QoS rule includes at least one of the following:

[0479] Based on the QRI, associate the first information with the QoS rules corresponding to the QRI;

[0480] Based on QFI, associate the first information with the QoS rules corresponding to the QFI.

[0481] Optionally, the step of associating the first information and the QoS rule corresponding to the QRI based on the QRI includes:

[0482] For each QoS flow, based on the QRI, associate the first information with the QoS rule corresponding to the QRI.

[0483] Optionally, the step of associating the first information and the QoS rule corresponding to the QFI based on QFI includes:

[0484] For each QoS flow, based on QFI, associate the first information with the QoS rule corresponding to the QRI.

[0485] Optionally, the device further includes:

[0486] The second receiving module is used to receive target messages sent by network-side devices;

[0487] The fifth processing module is used to perform the second operation based on the target message;

[0488] The target message includes at least one of the following:

[0489] A message used to instruct the updating of the first information;

[0490] Message used to delete at least one QoS flow;

[0491] A message used to delete at least one QoS rule;

[0492] The second operation includes at least one of the following:

[0493] Store the first updated information;

[0494] Associate the first information with the QoS flow;

[0495] Associate the first information with the QoS rules;

[0496] Delete at least one QoS flow;

[0497] Delete at least one QoS rule;

[0498] Delete the first piece of information associated with the QoS rule;

[0499] Delete the first piece of information associated with the QoS flow;

[0500] Remove the association between the QoS rule and the first piece of information;

[0501] Remove the association between the QoS flow and the first information.

[0502] Optionally, the first information is used to indicate the ECN tag, including at least one of the following:

[0503] The first information is used to indicate whether or not to execute the ECN tag;

[0504] The first information is used to indicate whether the ECN tag is activated or deactivated;

[0505] The first piece of information is used to indicate whether or not an ECN tag is required.

[0506] Optionally, the first information satisfies at least one of the following:

[0507] The first information is applied to the PDU session;

[0508] The first piece of information is PDU session-level information;

[0509] The first information is used to instruct the PDU session whether or not to execute the ECN tag.

[0510] The first piece of information is a Type 1 IE.

[0511] Optionally, the ECN tag is an ECN tag used for L4S.

[0512] In embodiments of this application, the terminal receives first information sent by the network-side device. This first information is used to indicate an ECN mark. The terminal can determine congestion information based on the ECN mark, thereby reducing signaling waste when sending or receiving information. This solves the problem of SMF sending and updating the Indication of ECN marking for L4S, optimizes signaling interaction, and saves 5G-RG storage space.

[0513] Referring to Figure 5, when the information transmission device is a network-side device or a component of a network-side device, the information transmission device 500 includes a first sending module 501, which is used to send first information to the terminal, the first information being used to indicate an ECN tag.

[0514] Optionally, the first sending module is specifically used for:

[0515] Send target information to the terminal, wherein the first information is contained within the target information;

[0516] The target information includes at least one of QoS rules, PD, and second information;

[0517] The second information satisfies at least one of the following conditions:

[0518] The second information is associated with at least one QoS rule identifier (QRI);

[0519] The second information is associated with at least one QoS flow identifier (QFI);

[0520] The second information is associated with at least one QoS rule;

[0521] The second information is associated with at least one QoS flow;

[0522] The second piece of information is information outside of QoS rules;

[0523] The second information is information other than PD;

[0524] The second information includes at least one QRI;

[0525] The second information includes at least one QFI.

[0526] Optionally, the first information is included in the target information, including:

[0527] When the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following:

[0528] Information used to indicate the length of the third information content;

[0529] At least one QRI;

[0530] At least one QFI.

[0531] Optionally, the second information may also include at least one of the following:

[0532] Information element identifier (IEI);

[0533] Information used to indicate the length of the second message.

[0534] Optionally, if the target information is a PD, the first information is included in the target information, including at least one of the following:

[0535] The reserved bits in the PD include the first information;

[0536] The information outside the target domain in the PD includes the first information;

[0537] The target domain includes at least one of the following: transport protocol domain; RTP header extension type domain; RTP header extension identifier domain; and RTP payload information list domain.

[0538] Optionally, the first sending module is specifically configured to perform at least one of the following:

[0539] Send a PDU session establishment acceptance message to the terminal, wherein the first information is included in the PDU session establishment acceptance message;

[0540] A PDU session modification command message is sent to the terminal, wherein the first information is included in the PDU session modification command message.

[0541] Optionally, the device further includes:

[0542] The second sending module is used to send a target message to the terminal; the target message includes at least one of the following:

[0543] A message used to instruct the updating of the first information;

[0544] Message used to delete at least one QoS flow;

[0545] A message used to delete at least one QoS rule.

[0546] Optionally, the first information is used to indicate the ECN tag, including at least one of the following:

[0547] The first information is used to indicate whether or not to execute the ECN tag;

[0548] The first information is used to indicate whether the ECN tag is activated or deactivated;

[0549] The first piece of information is used to indicate whether or not an ECN tag is required.

[0550] Optionally, the first information satisfies at least one of the following:

[0551] The first information is applied to the PDU session;

[0552] The first piece of information is PDU session-level information;

[0553] The first information is used to instruct the PDU session whether or not to execute the ECN tag;

[0554] The first piece of information is a Type 1 IE.

[0555] Optionally, the ECN tag is an ECN tag used for L4S.

[0556] In embodiments of this application, the network-side device sends first information to the terminal, which is used to indicate an ECN mark. The terminal can determine congestion information based on the ECN mark, thereby reducing signaling waste when sending or receiving information. This solves the problem of SMF sending and updating the Indication of ECN marking for L4S, optimizes signaling interaction, and saves 5G-RG storage space.

[0557] The information transmission provided in this application embodiment can realize the various processes implemented in the method embodiments of Figures 2 to 3 and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0558] As shown in Figure 6, this application embodiment also provides a communication device 600, including a processor 601 and a memory 602. The memory 602 stores a program or instructions that can run on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the various steps of the above-described information transmission method embodiment applied to a terminal, and achieve the same technical effect. When the communication device 600 is a network-side device, the program or instructions executed by the processor 601 implement the various steps of the above-described information transmission method embodiment applied to a network-side device, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0559] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiment shown in FIG2. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. The terminal can be the information transmission device shown in FIG4. Specifically, FIG7 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of this application.

[0560] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0561] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. The terminal structure shown in Figure 7 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0562] It should be understood that, in this embodiment, the input unit 704 may include a graphics processor 7041 and a microphone 7042. The graphics processor 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0563] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 701 can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0564] The memory 709 can be used to store software programs or instructions, as well as various data. The memory 709 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0565] Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0566] The radio frequency unit 701 is used to receive first information from the network-side device, the first information being used to indicate the explicit congestion notification ECN tag.

[0567] Optionally, the radio frequency unit 701 is specifically used for:

[0568] Receive target information from a network-side device, wherein the first information is contained within the target information;

[0569] The target information includes at least one of the following: Quality of Service (QoS) rules, Protocol Description (PD), and second information.

[0570] The second information satisfies at least one of the following conditions:

[0571] The second information is associated with at least one QoS rule identifier (QRI);

[0572] The second information is associated with at least one QoS flow identifier (QFI);

[0573] The second information is associated with at least one QoS rule;

[0574] The second information is associated with at least one QoS flow;

[0575] The second piece of information is information outside of QoS rules;

[0576] The second information is information other than PD;

[0577] The second information includes at least one QRI;

[0578] The second information includes at least one QFI.

[0579] Optionally, the first information is included in the target information, including:

[0580] When the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following:

[0581] Information used to indicate the length of the third information content;

[0582] At least one QRI;

[0583] At least one QFI.

[0584] Optionally, the processor 710 is used for:

[0585] When the information indicating the length of the third information content is set to a first value, the terminal performs at least one of the following operations:

[0586] Delete the first piece of information associated with the QoS rule;

[0587] Delete the first piece of information associated with the QoS flow;

[0588] Remove the association between the QoS rule and the first piece of information;

[0589] Remove the association between the QoS flow and the first information;

[0590] Delete the first piece of information associated with the QRI;

[0591] Delete the first information associated with QFI.

[0592] Optionally, the second information may also include at least one of the following:

[0593] Information element identifier (IEI);

[0594] Information used to indicate the length of the second message.

[0595] Optionally, the processor 710 is used for:

[0596] When the information indicating the second information length is set to a second value, the terminal performs at least one of the following operations:

[0597] Delete the first piece of information associated with the QoS rule;

[0598] Delete the first piece of information associated with the QoS flow;

[0599] Remove the association between the QoS rule and the first piece of information;

[0600] Remove the association between the QoS flow and the first information;

[0601] Delete the first piece of information associated with the QRI;

[0602] Delete the first information associated with QFI.

[0603] Optionally, if the target information is a PD, the first information is included in the target information, including at least one of the following:

[0604] The reserved bits in the PD include the first information;

[0605] The information outside the target domain in the PD includes the first information;

[0606] The target domain includes at least one of the following: transport protocol domain; RTP header extension type domain; RTP header extension identifier domain; and RTP payload information list domain.

[0607] Optionally, the processor 710 is used for:

[0608] If the first condition is met, the terminal performs at least one of the following operations:

[0609] Delete the first piece of information associated with the QoS rule;

[0610] Delete the first piece of information associated with the QoS flow;

[0611] Remove the association between the QoS rule and the first piece of information;

[0612] Remove the association between the QoS flow and the first information.

[0613] The first condition includes:

[0614] The target information is PD;

[0615] The information used to indicate the length of the PD is set to 1.

[0616] Optionally, the radio frequency unit is specifically configured to perform at least one of the following:

[0617] Receive a PDU session establishment acceptance message from a network-side device, wherein the first information is included in the PDU session establishment acceptance message;

[0618] Receive a PDU session modification command message from a network-side device, wherein the first information is included in the PDU session modification command message.

[0619] Optionally, the processor 710 is used for:

[0620] The terminal performs a first operation based on the first information, the first operation including at least one of the following:

[0621] Store the first information;

[0622] Associate the first information with the PDU session;

[0623] Associate the first information with the QoS flow;

[0624] Associate the first information with the QoS rules.

[0625] Optionally, associating the first information and the QoS flow includes at least one of the following:

[0626] Based on the QRI, associate the first information with the QoS flow corresponding to the QRI;

[0627] Based on QFI, associate the first information with the QoS flow corresponding to the QFI.

[0628] Optionally, the step of associating the first information and the QoS flow corresponding to the QRI based on the QRI includes:

[0629] For each QoS flow, based on the QRI, associate the first information with the QoS flow corresponding to the QRI.

[0630] Optionally, the step of associating the first information and the QoS flow corresponding to the QFI based on QFI includes:

[0631] For each QoS flow, based on QFI, associate the first information with the QoS flow corresponding to the QFI.

[0632] Optionally, the association of the first information and the QoS rule includes at least one of the following:

[0633] Based on the QRI, associate the first information with the QoS rules corresponding to the QRI;

[0634] Based on QFI, associate the first information with the QoS rules corresponding to the QFI.

[0635] Optionally, the step of associating the first information and the QoS rule corresponding to the QRI based on the QRI includes:

[0636] For each QoS flow, based on the QRI, associate the first information with the QoS rule corresponding to the QRI.

[0637] Optionally, the step of associating the first information and the QoS rule corresponding to the QFI based on QFI includes:

[0638] For each QoS flow, based on QFI, associate the first information with the QoS rule corresponding to the QRI.

[0639] Optionally, the radio frequency unit is further used for:

[0640] Receive target messages sent by network-side devices;

[0641] The processor 710 is further configured to: perform a second operation based on the target message;

[0642] The target message includes at least one of the following:

[0643] A message used to instruct the updating of the first information;

[0644] Message used to delete at least one QoS flow;

[0645] A message used to delete at least one QoS rule;

[0646] The second operation includes at least one of the following:

[0647] Store the first updated information;

[0648] Associate the first information with the QoS flow;

[0649] Associate the first information with the QoS rules;

[0650] Delete at least one QoS flow;

[0651] Delete at least one QoS rule;

[0652] Delete the first piece of information associated with the QoS rule;

[0653] Delete the first piece of information associated with the QoS flow;

[0654] Remove the association between the QoS rule and the first piece of information;

[0655] Remove the association between the QoS flow and the first information.

[0656] Optionally, the first information is used to indicate the ECN tag, including at least one of the following:

[0657] The first information is used to indicate whether or not to execute the ECN tag;

[0658] The first information is used to indicate whether the ECN tag is activated or deactivated;

[0659] The first piece of information is used to indicate whether or not an ECN tag is required.

[0660] Optionally, the first information satisfies at least one of the following:

[0661] The first information is applied to the PDU session;

[0662] The first piece of information is PDU session-level information;

[0663] The first information is used to instruct the PDU session whether or not to execute the ECN tag.

[0664] The first piece of information is a Type 1 IE.

[0665] Optionally, the ECN tag is an ECN tag for low latency, low loss, and scalable throughput L4S.

[0666] In embodiments of this application, the terminal receives first information sent by the network-side device. This first information is used to indicate an ECN mark. The terminal can determine congestion information based on the ECN mark, thereby reducing signaling waste when sending or receiving information. This solves the problem of SMF sending and updating the Indication of ECN marking for L4S, optimizes signaling interaction, and saves 5G-RG storage space.

[0667] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the information transmission method in the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0668] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG3. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0669] Specifically, this application embodiment also provides a network-side device, which can be the information transmission device shown in FIG5. As shown in FIG8, the network-side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84, and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and transmits it through the antenna 81.

[0670] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a baseband processor.

[0671] The baseband device 83 may include at least one baseband board, on which multiple chips are disposed, as shown in FIG8. One of the chips is, for example, a baseband processor, which is connected to the memory 85 via a bus interface to call the program in the memory 85 and execute the network device operation shown in the above method embodiment.

[0672] The network-side device may also include a network interface 86, such as a Common Public Radio Interface (CPRI).

[0673] Specifically, the network-side device 800 in this application embodiment further includes: instructions or programs stored in memory 85 and executable on processor 84. Processor 84 calls the instructions or programs in memory 85 to execute the methods executed by each module shown in FIG5 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0674] Specifically, this application also provides a network-side device. As shown in FIG9, the network-side device 900 includes a processor 901, a network interface 902, and a memory 903. The network-side device may be the information transmission device shown in FIG5. The network interface 902 is, for example, a Common Public Radio Interface (CPRI).

[0675] Specifically, the network-side device 900 in this application embodiment further includes: instructions or programs stored in memory 903 and executable on processor 901. Processor 901 calls the instructions or programs in memory 903 to execute the methods executed by each module shown in FIG5 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0676] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described information transmission method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0677] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0678] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described information transmission method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0679] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0680] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described information transmission method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0681] This application also provides an information transmission system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of the information transmission method applied to the terminal as described above, and the network-side device can be used to execute the steps of the method applied to the network-side device as described above.

[0682] This application also provides a computer program product, including computer instructions, which, when executed by a processor, implement the steps of the above-described information transmission method.

[0683] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0684] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0685] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for information transmission, comprising: receiving, by a terminal, first information from a network side device, the first information being used to indicate an Explicit Congestion Notification, ECN, mark.

2. The method of claim 1, wherein, The receiving, by the terminal, the first information from the network side device comprises: receiving, by the terminal, target information from the network side device, the first information being included in the target information; wherein the target information comprises at least one of a Quality of Service, QoS, rule, a Protocol Description, PD, and second information; the second information satisfies at least one of the following conditions: the second information is associated with at least one QoS Rule Identifier, QRI; the second information is associated with at least one QoS Flow Identifier, QFI; the second information is associated with at least one QoS rule; the second information is associated with at least one QoS flow; the second information is information other than a QoS rule; the second information is information other than a PD; the second information comprises at least one QRI; the second information comprises at least one QFI.

3. The method of claim 2, wherein, The first information being included in the target information comprises: in a case where the target information is second information, the second information comprises at least one third information, wherein the third information comprises the first information and at least one of the following: information used to indicate a length of third information content; at least one QRI; at least one QFI. 4.The method of claim 3, further comprising: in a case where the information used to indicate the length of third information content is set to a first value, the terminal performs at least one of the following operations: deleting first information associated with a QoS rule; deleting first information associated with a QoS flow; deleting an association between a QoS rule and the first information; deleting an association between a QoS flow and the first information; deleting first information associated with a QRI; deleting first information associated with a QFI.

5. The method of claim 2 or 3, wherein, The second information further comprises at least one of the following: an Information Element Identifier, IEI; information used to indicate a length of second information. 6.The method of claim 5, further comprising: in a case where the information used to indicate the length of second information is set to a second value, the terminal performs at least one of the following operations: deleting first information associated with a QoS rule; deleting first information associated with a QoS flow; deleting an association between a QoS rule and the first information; deleting an association between a QoS flow and the first information; deleting first information associated with a QRI; deleting first information associated with a QFI.

7. The method of claim 2, wherein, In a case where the target information is a PD, the first information being included in the target information comprises at least one of the following: a reserved bit in the PD comprises the first information; information other than a target field in the PD comprises the first information; wherein the target field comprises at least one of the following: a transport protocol field; an RTP header extension type field; an RTP header extension identifier field; an RTP payload information list field. 8.The method of claim 2, further comprising: in a case where a first condition is satisfied, the terminal performs at least one of the following operations: deleting first information associated with a QoS rule; deleting first information associated with a QoS flow; delete the association between the QoS rule and the first information; delete the association between the QoS flow and the first information; wherein the first condition comprises: the target information is a PD; information indicating the length of the PD is set to 1.

9. The method of claim 1, wherein, the first information comprises at least one of the following: receiving a PDU session establishment accept message from the network side device, and the first information is contained in the PDU session establishment accept message; receiving a PDU session modification command message from the network side device, and the first information is contained in the PDU session modification command message.

10. The method of claim 1, further comprising: the terminal performing a first operation according to the first information, the first operation comprising at least one of the following: storing the first information; associating the first information with a PDU session; associating the first information with a QoS flow; associating the first information with a QoS rule.

11. The method of claim 10, wherein, the associating the first information with a QoS flow comprises at least one of the following: based on a QRI, associating the first information with a QoS flow corresponding to the QRI; based on a QFI, associating the first information with a QoS flow corresponding to the QFI.

12. The method of claim 11, wherein, the based on a QRI, associating the first information with a QoS flow corresponding to the QRI comprises: for each QoS flow, based on a QRI, associating the first information with a QoS flow corresponding to the QRI; the based on a QFI, associating the first information with a QoS flow corresponding to the QFI comprises: for each QoS flow, based on a QFI, associating the first information with a QoS flow corresponding to the QFI.

13. The method of claim 10, wherein, the associating the first information with a QoS rule comprises at least one of the following: based on a QRI, associating the first information with a QoS rule corresponding to the QRI; based on a QFI, associating the first information with a QoS rule corresponding to the QFI.

14. The method of claim 13, wherein, the based on a QRI, associating the first information with a QoS rule corresponding to the QRI comprises: for each QoS flow, based on a QRI, associating the first information with a QoS rule corresponding to the QRI; the based on a QFI, associating the first information with a QoS rule corresponding to the QFI comprises: for each QoS flow, based on a QFI, associating the first information with a QoS rule corresponding to the QRI.

15. The method of claim 1, further comprising: the terminal receiving a target message sent by the network side device; performing a second operation according to the target message; wherein the target message comprises at least one of the following: a message indicating updating the first information; a message for deleting at least one QoS flow; a message for deleting at least one QoS rule; the second operation comprises at least one of the following: storing the updated first information; associating the first information with a QoS flow; associating the first information with a QoS rule; deleting at least one QoS flow; deleting at least one QoS rule; deleting the first information associated with a QoS rule; deleting the first information associated with a QoS flow; delete the association between the QoS rule and the first information; delete the association between the QoS flow and the first information.

16. The method of any one of claims 1 to 15, wherein, The first information is used to indicate ECN marking, including at least one of the following: The first information is used to indicate that ECN marking is performed or not performed; The first information is used to indicate that ECN marking is activated or not activated; The first information is used to indicate that ECN marking is required or not required.

17. The method of any one of claims 1 to 16, wherein, The first information satisfies at least one of the following: The first information is applied to a PDU session; The first information is PDU session level information; The first information is used to indicate that the PDU session performs or does not perform ECN marking; The first information is a type 1 IE.

18. The method of any one of claims 1 to 17, wherein, The ECN marking is an ECN marking for low delay, low loss, and scalable throughput L4S.

19. An information transmission method, wherein, Comprising: The network side device sends the first information to the terminal, and the first information is used to indicate ECN marking.

20. The method of claim 19, wherein, The first information sent to the terminal includes: The target information is sent to the terminal, and the first information is included in the target information; Wherein, the target information includes at least one of the following: The second information satisfies at least one of the following conditions: The second information is associated with at least one QoS rule identification QRI; The second information is associated with at least one QoS flow identification QFI; The second information is associated with at least one QoS rule; The second information is associated with at least one QoS flow; The second information is information other than QoS rule; The second information is information other than PD; The second information includes at least one QRI; The second information includes at least one QFI.

21. The method of claim 20, wherein, The first information is included in the target information, including: In the case that the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following: Information for indicating the length of the third information content; At least one QRI; At least one QFI.

22. The method of claim 20 or 21, wherein, The second information further includes at least one of the following: Information element identification IEI; Information for indicating the length of the second information.

23. The method of claim 20, wherein, In the case that the target information is PD, the first information is included in the target information, including at least one of the following: The reserved bits in the PD include the first information; The information outside the target field in the PD includes the first information; Wherein, the target field includes at least one of the following: transmission protocol field; RTP header extension type field; RTP header extension identification field; RTP payload information list field.

24. The method of claim 19, wherein, The first information sent to the terminal includes at least one of the following: The PDU session establishment acceptance message is sent to the terminal, and the first information is included in the PDU session establishment acceptance message; The PDU session modification command message is sent to the terminal, and the first information is included in the PDU session modification command message.

25. The method of claim 19, further comprising: sending a target message to the terminal; the target message includes at least one of the following: a message for updating the first information; a message for deleting at least one QoS flow; A message for deleting at least one QoS rule.

26. The method of any one of claims 19 to 25, wherein, The first information is used for indicating ECN marking, including at least one of the following: The first information is used for indicating performing or not performing ECN marking; The first information is used for indicating activating or not activating ECN marking; The first information is used for indicating requiring or not requiring ECN marking.

27. The method of any one of claims 19 to 26, wherein, The first information satisfies at least one of the following: The first information is applied to a PDU session; The first information is PDU session level information; The first information is used for indicating that the PDU session performs or does not perform ECN marking; The first information is a type 1 IE.

28. The method of any one of claims 19 to 27, wherein, The ECN marking is an ECN marking for L4S. 29.An information transmission apparatus, comprising: a first receiving module, configured to receive first information from a network side device, the first information being used for indicating Explicit Congestion Notification (ECN) marking.

30. The apparatus of claim 29, wherein, The first receiving module is specifically configured to: receive target information from the network side device, the first information being included in the target information; The target information includes at least one of the following: quality of service (QoS) rules, a protocol description (PD), and second information; The second information satisfies at least one of the following conditions: The second information is associated with at least one QoS rule identifier (QRI); The second information is associated with at least one QoS flow identifier (QFI); The second information is associated with at least one QoS rule; The second information is associated with at least one QoS flow; The second information is information other than QoS rules; The second information is information other than PD; The second information includes at least one QRI; 31. The apparatus of claim 30, wherein, The second information includes at least one QFI. The first information is included in the target information, including: In a case where the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following: information used for indicating a length of third information content; at least one QRI; 32. The apparatus of claim 29, wherein, at least one QFI. The first receiving module is specifically configured to perform at least one of the following: receive a PDU session establishment accept message from the network side device, the first information being included in the PDU session establishment accept message; receive a PDU session modification command message from the network side device, the first information being included in the PDU session modification command message. 33.The apparatus of claim 29, further comprising: a second receiving module, configured to receive a target message sent by the network side device; a fifth processing module, configured to perform a second operation according to the target message; The target message includes at least one of the following: a message used for updating the first information; a message used for deleting at least one QoS flow; a message used for deleting at least one QoS rule; The second operation includes at least one of the following: storing updated first information; associating the first information and a QoS flow; associating the first information and a QoS rule; deleting at least one QoS flow; deleting at least one QoS rule; deleting first information associated with a QoS rule; delete the first information associated with the QoS flow; delete the association between the QoS rule and the first information; delete the association between the QoS flow and the first information.

34. An information transmission apparatus, comprising: a first sending module, configured to send first information to a terminal, the first information being used to indicate an ECN mark.

35. The apparatus of claim 34, wherein, The first sending module is specifically configured to: send target information to the terminal, the first information being included in the target information; The target information includes at least one of a QoS rule, a PD, and second information. The second information satisfies at least one of the following conditions: The second information is associated with at least one QoS rule identifier QRI; The second information is associated with at least one QoS flow identifier QFI; The second information is associated with at least one QoS rule; The second information is associated with at least one QoS flow; The second information is information other than a QoS rule; The second information is information other than a PD; The second information includes at least one QRI; The second information includes at least one QFI.

36. The apparatus of claim 35, wherein, The first information is included in the target information, including: In a case where the target information is second information, the second information includes at least one third information, wherein the third information includes the first information and at least one of the following: information used to indicate the length of the content of the third information; at least one QRI; at least one QFI.

37. The apparatus of claim 34, wherein, The first sending module is specifically configured to perform at least one of the following: send a PDU session establishment accept message to the terminal, the first information being included in the PDU session establishment accept message; send a PDU session modification command message to the terminal, the first information being included in the PDU session modification command message.

38. The apparatus of claim 34, further comprising: a second sending module, configured to send a target message to the terminal; the target message including at least one of the following: a message used to update the first information; a message used to delete at least one QoS flow; a message used to delete at least one QoS rule.

39. A terminal, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the information transmission method according to any one of claims 1 to 18.

40. A network side device, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the information transmission method according to any one of claims 19 to 28.

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